Thread: Black smoke
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Old 05-03-2013, 06:53 PM   #4
2012InfernoSS

 
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Drives: 93GMC sierra stepside/ ctsv3
Join Date: Dec 2011
Location: San Antonio, Texas
Posts: 914
Cool, didn't think it was anything to be worried about but wanted to make sure. I do notice when I clean my car the exhaust tips/steel holes on the GM ground effects are black, not real bad but has build up on them

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